*html body #floatbannerwwrap {
 position: absolute;
 top:0;
 left:0;
}

#floatbannerwrap {
 margin: 0px;
}

*html body #floatbannerwrap {
 width: 800px;
 position: relative;
 margin: 0px auto 0px auto; 
}

#floatbanner {
 position: fixed;
 top: 50%;
 left: 50%;
 margin-top: -168px;
 margin-left: 415px;
}

*html body #floatbanner {
 position: absolute;
 top: expression(eval(document.documentElement.scrollTop + document.documentElement.clientHeight/2 - 168));
 left: 812px;
 margin-top: 0px;
 margin-left: 0px;
}